scholarly journals UV-visible-NIR active smart photocatalytic system based on NaYbF4:Tm3+ upconverting particles and Ag3PO4/H2O2 for photocatalytic processes under both light on/light off conditions

2022 ◽  
Author(s):  
York Serge ◽  
Sajjad Ullah ◽  
Elias Paiva Ferreira Neto ◽  
Hernan D. Rojas-Mantilla ◽  
Chanchal Hazra ◽  
...  
Keyword(s):  
Broad Spectrum ◽  
Solar Spectrum ◽  
Photocatalytic System ◽  
Uv Visible ◽  
Photocatalytic Processes ◽  
Photocatalytic Materials

The development of broad-spectrum photocatalytic materials that allow the use of a larger portion (UV to NIR) of the solar spectrum for photocatalytic processes has attracted greater attention. Among the...

Characterization and Photocatalytic Evaluation (UV-Visible) of Fe-doped TiO2 Systems Calcined at Different Temperatures

2015 ◽  
Vol 18 (1) ◽  
Author(s):  
Ximena María Vargas ◽  
Juan Miguel Marin ◽  
Gloria Restrepo
Keyword(s):  
Photocatalytic Activity ◽  
Solar Spectrum ◽  
Doped Tio2 ◽  
Different Temperatures ◽  
Uv Visible ◽  
Intense Research

AbstractThere is growing interest in obtaining compounds with photocatalytic activity in the solar spectrum, and this has led to intense research on the topic. In our laboratory, Fe-doped TiO

A Bi2WO6-Based Hybrid Photocatalyst with Broad Spectrum Photocatalytic Properties under UV, Visible, and Near-Infrared Irradiation

2013 ◽  
Vol 25 (36) ◽  
pp. 5075-5080 ◽  
Author(s):  
Jian Tian ◽  
Yuanhua Sang ◽  
Guangwei Yu ◽  
Huaidong Jiang ◽  
Xiaoning Mu ◽  
...  
Keyword(s):  
Broad Spectrum ◽  
Near Infrared ◽  
Photocatalytic Properties ◽  
Infrared Irradiation ◽  
Uv Visible ◽  
Hybrid Photocatalyst

scholarly journals Decolarization of methylene blue and methyl orange with Ag doped TiO2 under UV-A and UV-Visible conditions: process optimization by response surface method and toxicity evaluation

2016 ◽  
Vol 18 (2) ◽  
pp. 371-380 ◽  
Keyword(s):  
Methylene Blue ◽  
Degradation Pathways ◽  
Composite Analysis ◽  
Photocatalytic Process ◽  
Wastewater Discharge ◽  
Toxicity Evaluation ◽  
Surface Method ◽  
Photocatalytic System ◽  
Uv Visible ◽  
Central Composite

<div> <p>MB decolarization with pure TiO<sub>2</sub> and Ag doped TiO<sub>2</sub> based photocatalytic system were investigated under UV-A and UV-Visible conditions. Different ratios of Ag were used as metal dopant. 1% Ag-TiO<sub>2</sub> increased the decolorization efficiencies of MB and MO dyes, also the k<sub>app</sub> constant enhanced under UV-A and UV-Visible conditions. A central composite analysis showed the effect of initial dye concentration, pH, Ag-TiO<sub>2</sub> concentration and the reaction time of photocatalytic process under UV-A irridation in both dyes. The photocatalytic degradation pathways of both dyes by Ag doped TiO<sub>2</sub> catalyst were obtained in this study. According to these results, the application of Ag-TiO<sub>2</sub> catalyst are proved to be more effective than pure TiO<sub>2</sub> catalyst for both MB and MO removal. The toxicity test of Daphnia Magna shows that non toxic wastewater discharge to the receiving environment could be possible with photocatalytic degration by Ag-TiO<sub>2</sub> catalyst.</p> </div> <p>&nbsp;</p>

Highly efficient UV-Vis-infrared catalytic purification of benzene on CeMnxOy/TiO2 nanocomposite, caused by its high thermocatalytic activity and strong absorption in the full solar spectrum region

2016 ◽  
Vol 4 (25) ◽  
pp. 9890-9899 ◽  
Author(s):  
Huihui Liu ◽  
Yuanzhi Li ◽  
Yi Yang ◽  
Mingyang Mao ◽  
Min Zeng ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Solar Spectrum ◽  
Strong Absorption ◽  
Infrared Irradiation ◽  
Highly Efficient ◽  
Uv Visible ◽  
Spectrum Region

The CeMnxOy/TiO2 nanocomposite exhibits highly efficient catalytic activity for benzene abatement with UV-visible-infrared irradiation.

scholarly journals Enhancement of hydrogen production of a Cu–TiO2nanocomposite photocatalyst combined with broad spectrum absorption sensitizer Erythrosin B

RSC Advances ◽  
2017 ◽  
Vol 7 (29) ◽  
pp. 17873-17881 ◽  
Author(s):  
Piyong Zhang ◽  
Ting Song ◽  
Tingting Wang ◽  
Heping Zeng
Keyword(s):  
Hydrogen Production ◽  
Broad Spectrum ◽  
Ultraviolet Region ◽  
Erythrosin B ◽  
Photocatalytic System ◽  
Long Time

A broad spectrum absorption photocatalytic system has been expected for a long time, especially for catalysts where the absorption mainly concentrates on the ultraviolet region, like TiO2.

UV-visible broad spectrum light emitting device of ZnO/MgO/ITO structure

2017 ◽  
Vol 187 ◽  
pp. 428-432 ◽  
Author(s):  
Shiwei Zhuang ◽  
Bin Wu ◽  
Heng Xu ◽  
Chen Chi ◽  
Yuantao Zhang ◽  
...  
Keyword(s):  
Broad Spectrum ◽  
Light Emitting ◽  
Uv Visible

ChemInform Abstract: A Bi2WO6-Based Hybrid Photocatalyst with Broad Spectrum Photocatalytic Properties under UV, Visible, and Near-Infrared Irradiation.

ChemInform ◽  
2013 ◽  
Vol 44 (51) ◽  
pp. no-no
Author(s):  
Jian Tian ◽  
Yuanhua Sang ◽  
Guangwei Yu ◽  
Huaidong Jiang ◽  
Xiaoning Mu ◽  
...  
Keyword(s):  
Broad Spectrum ◽  
Near Infrared ◽  
Photocatalytic Properties ◽  
Infrared Irradiation ◽  
Uv Visible ◽  
Hybrid Photocatalyst

scholarly journals Irradiance Observations in Near-UV, Visible and Near Infrared Spectral Bands from Measurements Carried out during ATLAS-1 and EURECA-1 Missions

1994 ◽  
Vol 143 ◽  
pp. 70-71
Author(s):  
Gerard Thuillier ◽  
Michel Herse ◽  
Dietrich Labs ◽  
Paul C. Simon ◽  
Didier Gillotay ◽  
...  
Keyword(s):  
Near Infrared ◽  
Solar Spectrum ◽  
Spectral Irradiance ◽  
Solar Spectral Irradiance ◽  
Spectral Bands ◽  
Percent Difference ◽  
Infrared Spectral ◽  
Uv Visible ◽  
The One ◽  
20 Nm

For the ATLAS and EURECA missions, we have used two identical instruments to measure the absolute solar spectral irradiance from 180 to 3200 nm. These instruments are calibrated by use of a blackbody and a set of lamp standards. The measurements are carried out with 1 nm bandpass up to 800 nm and 20 nm above. The instruments and calibration procedures are described by Thuillier et al. (1981). The platform capability of instruments retrieval after measurements allows a post-flight calibration which is essential for accurate measurements. The main results obtained up to now are:- In the UV, the ATLAS-1 and EURECA-1 solar spectral irradiance are consistent with the SpaceLab 1 data obtained in 1983 (Labs et al. 1987). Figure 1 shows the ATLAS 1 and SL 1 spectra. The origin of the existing differences is presently under investigation.- In the visible domain, our measurements agree with the solar spectrum from Neckel & Labs (1984) within a few percent difference at certain wavelength.- In the IR domain, the preliminary processing shows a spectrum close to the one obtained by Thekaekara (1974).

Sign in / Sign up

Export Citation Format

Share Document